13672045 has 4 divisors (see below), whose sum is σ = 16406460. Its totient is φ = 10937632.

The previous prime is 13672037. The next prime is 13672049. The reversal of 13672045 is 54027631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3755844 + 9916201 = 1938^2 + 3149^2 .

It is a cyclic number.

It is not a de Polignac number, because 13672045 - 2³ = 13672037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13672049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367200 + ... + 1367209.

It is an arithmetic number, because the mean of its divisors is an integer number (4101615).

Almost surely, 2^13672045 is an apocalyptic number.

It is an amenable number.

13672045 is a deficient number, since it is larger than the sum of its proper divisors (2734415).

13672045 is an equidigital number, since it uses as much as digits as its factorization.

13672045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734414.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 13672045 is about 3697.5728525615. The cubic root of 13672045 is about 239.1173889230.

Adding to 13672045 its reverse (54027631), we get a palindrome (67699676).

The spelling of 13672045 in words is "thirteen million, six hundred seventy-two thousand, forty-five".